Why Are Noah and Alex Worth Reading on the Use of AI in the Legal Industry?
In the Pages Ahead
PART I: The Point
CHAPTER 1: How Lawyers Learned to Stop Worrying and Love AI
What Is AI?
Appropriate Skepticism
Common Lawyer Objections to AI
Why Customize?
The Business Case for AI
Notes
CHAPTER 2: #DoMoreLaw
Jevons Paradox: The More Efficient Legal Work Is, the More Legal Work to Do
Value Is in the Eyes of the Beholder
Access to Justice
CHAPTER 3: The Small Law Mindset
To AI or Not to AI?
It's All about Practicality
What Does Your Future Market Look Like?
Plan for the Future Before It Arrives
Note
CHAPTER 4: AI: A Modern Job Creator
Jevons “Legal” Paradox
A Growing Array of Legal Jobs
Legal Operations and CLOC
Driving the New Jobs Part 1: A New Legal Tech Sector
Driving the New Jobs Part 2: New Tech-Enabled Business Models
New and Better Jobs: Diverse Skill Sets Needed
The Delta Lawyer Competency Model
Conclusion
Notes
CHAPTER 5: Amplifying Legal Expertise
Amplification: What Lawyers Can Learn from Rock Stars
The Three Most Important Things about Training AI
Let's Agree to Not Disagree
Build Value for the Firm Itself
Are There Limits to Amplifying?
Notes
CHAPTER 6: The Ethics of Lawyers Using and Not Using AI
Duty of Competency
Duty of Communication
Duty to Supervise / Unauthorized Practice of Law
Duty of Loyalty
The Issue of Bias
Solutions to AI Bias
Ethics Review: An Ongoing Issue
Notes
PART II: The Proof
CHAPTER 7: eDiscovery
My eDiscovery Roots
How AI Turned Traditional Discovery on Its Head
The Role of AI in eDiscovery Search and Review
eDiscovery in Action
Tracking the Next Big Source
Notes
CHAPTER 8: AI in Legal Research
Can AI Save Lives? The Stakes of Legal Research
The Dark Times (Before Artificial Intelligence)
AI in Legal Research Today
AI Will Help to Write the Future
AI Will Continue to Help Lawyers Do Higher Value Work
Notes
CHAPTER 9: Litigation Analytics
Why Am I the Right Person to Discuss Litigation Analytics?
Research, Data, and Predictions: Pre- and Post-AI
So, How Does It Actually Work?
Impacting Lawyers
The Future of AI Litigation Software
Note
CHAPTER 10: Contract Review to Contract Capital
What's Wrong with Traditional Software-Free Contract Review?
AI Enhanced Contract Analysis
Two Types of Contract Review
How AI-Based Contract Review Works
Familiar and Unfamiliar Contracts
Beyond Law Firms: Contract Management and Review in Business
How Contract Analysis Software Is Impacting How Lawyers Work
The Future of AI and Contract Analysis
CHAPTER 11: Expert Systems
Some Background: Founding Neota Logic
What Sets Expert Systems Apart?
Who's Using Expert Systems? And Why?
Looking Ahead
Note
PART III: The Plan
CHAPTER 12: The AI Adoption Framework
Factor 1: Comprehensive Use of AI
Factor 2: The Breadth and Creativity of AI Use
How Mature Is Your Approach to AI?
Leaders
Show Strength in Adoption and Creativity Now Need to Stay Focused to Stay on Top Doers
Have Cleared a Big Adoption Hurdle Now Can Extend by Expanding Their AI Expertise in New Ways Dreamers
Show Some Big Ideas in the Organization But Now Need to Beef Up Adoption
Developing
Lagging in Adoption and Creativity Need to Focus First on Adoption to Gain Momentum
Taking the Next Step
CHAPTER 13: Conclusion
A Brief Summation: The Benefits of AI More Automation Is Coming
AI and the Modern Lawyer Acknowledgments
About the Authors Index
End
List of Illustrations
Chapter 1
FIGURE 1.1 Early “computers” at work: Dryden Flight Research Center Faciliti...
FIGURE 1.2 Kira document viewer.
FIGURE 1.3 Kira built-in intelligence: smart-field growth.
FIGURE 1.4 AI training capabilities.
Chapter 2
FIGURE 2.1 Growth in demand for law firm services.
FIGURE 2.2 Percentage change in employed lawyers by practice setting, 1997 t...
FIGURE 2.3 Refrigerator efficiency paradoxically drives more effort.
FIGURE 2.4 Four diligence review scenarios.
FIGURE 2.5 Increasing realization rates.
Chapter 4
FIGURE 4.1 The CLOC Core 12.
FIGURE 4.2 The Martech 5000.
FIGURE 4.3 AI in law today.
FIGURE 4.4 The Delta Lawyer Competency Model.
FIGURE 4.5 Predominant competencies.
Chapter 10
FIGURE 10.1 Contract analysis with Kira clockwise from top left (Importing, ...
Chapter 12
FIGURE 12.1 The AI maturity framework.
Chapter 13
FIGURE 13.1 The Benz Patent-Motorwagen (“patent motorcar”), built in 1885, i...
FIGURE 13.2 The Mercedes 35 HP was a radical early car model designed in 190...
PRAISE FOR AI FOR LAWYERS
AI for Lawyers pulls together a series of easy-to-read vignettes that cut through the mystique, noise and bullshit surrounding AI for legal. It provides excellent guidance for lawyers who don't know which way to travel when they finally arrive at the intersection of legal services and technology which is most of the profession!
Mitchell
Kowalski, author of The Great Legal Reformation: Notes from the Field
Noah Waisberg and Dr. Alexander Hudek have taken a complex topic and made it accessible and enjoyable. Like it or not, artificial intelligence and machine learning, particularly when combined with 5G connectivity, computing on the edge of networks and eventually quantum computing, will advance by leaps and bounds to automate and change the way we practice law. It is also leveling the playing field between lawyers practicing in big firms vs. small firms. Wherever, whatever and however you are currently practicing, AI for Lawyers will open your eyes and make you feel excited and empowered to be part of the future.
—Louis Lehot, founder, L2 Counsel, P.C.
Alex and Noah have written a demystifying AI book which will help lawyers take advantage of AI technology to create new customer value. They cover the key resources and processes needed to deliver value, which will help all lawyers capture this AI-driven value in their go-to-market approaches, enabling them to develop new ways to solve old problems.
Michelle Mahoney, Executive Director, Innovation, King & Wood Mallesons
There is little doubt that the legal industry has experienced a cataclysmic extinction moment, where yesterday's ways of working are tomorrow's fossilised memories. The changing expectations of both the consumers of legal services, and the next generations of lawyers, has seen to it that the practice of law has been changed forever by the arrival of advanced technologies.
In AI for Lawyers, Noah and Alex have created the definitive guide on the role of technology in the legal industry. No two authors are better qualified to commentate on how our world is changing. This is a must-read for anyone in the industry and those planning on living a life within the law.
Justin North, Managing Director, Morae Global Corporation
The intersection of science fiction and lawyering is both a terrible idea for a movie and a very real problem for attorneys. The terror that artificial intelligence will replace human lawyers and spew steam from the keyboard while trying to define “love” during an ill-fated document review terrifies some folks. And that's unfortunate because when stripped of its sci-fi mystique, “artificial intelligence” here in the real world is both non-frightening and entirely essential to a thriving 21st century law practice. Waisberg and Hudek's book provides lawyers a friendly, brass tacks introduction to this oft-misunderstood technology and provides straightforward examples of how AI can advance your practice … and, sometimes, how it's already advanced your practice without you even knowing it.
Joe Patrice, Senior Editor, Above the Law
Although many lawyers have strong views on the use of AI in the law, very few in fact have a solid grasp of the potential and limitations of this technology. Worse, some lawyers even have the temerity to use ‘AI’ as a verb, claiming almost arbitrarily that ‘you can AI’ this or that legal task. Into this world of bold confusion and brazen conjecture, I therefore extend a heartfelt welcome to AI for Lawyers. This book brings the clarity, deep technical expertise, practical experience, and commercial insight that are sorely needed in the field.
—Richard Susskind, author of Tomorrow's Lawyers (2017), The Future of the Professions (2015), The End of Lawyers (2008), and Expert Systems in Law (1987)
Noah and Alex clearly show that the use of AI-embedded software in the legal world will soon be as ubiquitous as the use of word processing. The authors (a Who's Who of experts in legal technology) cover an extraordinarily broad range of AI-software types and applications from machine learning to expert systems. The book is an essential read for solo practitioners all the way up to those practicing in the lofty heights of the elite firms around the world and for the technology gurus who enable them. To succeed in law in the coming years, you will need to use AI. To be prepared to use AI, reading this book is a must.
I loved this book! AI is increasingly becoming a driver of success for high performing lawyers and law firms. This book is a quick, easy introduction to it. Every lawyer should read it.
Kent Zimmermann, strategic advisor to law firms
NOAH WAISBERG AND DR. ALEXANDER HUDEK
AI FOR LAWYERS
HOW ARTIFICIAL INTELLIGENCE IS ADDING VALUE, AMPLIFYING EXPERTISE, AND TRANSFORMING CAREERS
Published by John Wiley & Sons, Inc , Hoboken, New Jersey
Published simultaneously in Canada.
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Lorie Waisberg kept checking his watch as he waited for the typist to finish the document. She was making the standard three copies using whitener and two pieces of carbon paper. He was anxious because he knew that getting extra copies would take time. When she handed the pages off to Lorie, he took off out the doors of his dad's law firm and down three flights of stairs, across the street, and continued his pace for two blocks, dodging traffic as he made his way to Sudbury's City Hall. They had one of the only copy machines in town, and the Waisbergs could use it in emergencies. Lorie had two concerns as he ran: one was that city hall closed at 4:00 p.m. promptly. The other was that he might not be able to find the person who held the only key to the copier room.
As Lorie made his way into the building, he saw that the clock in the lobby was closing in on 4:00 p.m. He found Gary, the chief engineer, better known to many as “the guy with the copier room key.” Gary was grabbing his jacket to head out for the day.
“Gary, it's just three copies, please,” panted Lorie. Gary smiled. “Okay, just for you,” and, with that, he unlocked the copier room.
It was 1959, and technology was a far cry from where it is today. Yet it was the year that US President Dwight Eisenhower first sent a message to Canadian Prime Minister John Diefenbaker by means of a radio signal bouncing off the moon as a forerunner of modern satellite communications. Such long-range communication would be one of many new technologies that Lorie Waisberg would see during this long legal career. After starting at what was then known as Goodman & Goodman (a small firm at the time, and today one of Canada's leading firms), he witnessed a parade of new technology, from the popular IBM Selectric typewriters to the new correctable models that made errors fixable. In the early 1970s, the Lexis service was introduced, which allowed lawyers to search case law on computers rather than laboriously poring through books. Fax machines became widely used in the early 1980s, spitting documents out at one to two pages printed per minute. This was a big improvement on waiting for couriered documents, especially when working with others far away. Shortly thereafter, word processors replaced typewriters. Then Lorie got a computer on his desk, then got the internet. “People didn't trust email at first; they wondered who else could see it,” recalls Lorie. Eventually, email became a preferred
means of communication. Lorie got a BlackBerry.
There were large technology changes over my dad's career, a lawyer for more than 30 years. His father, Harry, a lawyer and then a judge, started his legal career in the mid-1930s and saw new technology and other changes over his many years in law practice.
When I became a lawyer in 2006, email, the internet, and electronic legal research were standard, but we still regularly used physical books to look up information. “The printers” was an actual physical place. And, while virtual data rooms were popular, I had pleasant in-person due diligence trips to St. Louis and Pittsburgh. (“Pleasant” because the host company inevitably shut its doors at some civilized hour, as opposed to my New York Biglaw firm.) As a corporate lawyer, I had little to no specialized technology. We used email, Word (soupedup with some fancy toolbars), Excel, and PowerPoint (rarely!), the internet, virtual data rooms, and document comparison software. Someone passed around a link to an online version of the securities “Redbook,” but we mostly used the hefty physical version, and we (or our assistants) would diligently insert update pages into it as they arrived. If you asked, you could get Acrobat Professional. And, with some real effort and a partner's permission, the firm would even give you a second computer monitor and, maybe, a laptop. VoIP phones were apparently coming soon, meaning we could take calls from home and have no one be the wiser. We could remotely access our work computer via Citrix. I really appreciated my fancy telephone headset. Things are different now.
Obviously, the legal profession has advanced quite a bit since my grandfather and father's days as lawyers, and even since mine. Yet, challenges remain part of the job. I recall having to push hard as I started my law career, sifting through what seemed like endless pages of contracts, balancing multiple deals running simultaneously, and worrying that more work was coming when I saw my BlackBerry's light flashing red. I recall working an all-nighter and sending a draft out just after 6 a.m.; almost immediately I received comments back from a hedge fund client who had gotten to his desk early.
Despite the ongoing changes in legal technology, widespread misconceptions remain that (i) lawyers are loath to adopt new technology, and (ii) technology has historically not been a major factor in law. Yet lawyers have regularly adopted new technology at near-ubiquitous levels, and technology has played a key role in changing how law is practiced. For years, technology has made many lawyer tasks easier to complete, raising the performance bar and allowing lawyers to focus more attention on the needs of their clients. Today, artificial
intelligence is the latest step in driving the practice of law forward. AI is getting heavily used in law. It offers real advantages for lawyers who embrace it, and perils for those who don't. I'm happy to be a part of this change, and, just for the record, my dad is happy for me.
Noah Waisberg
The Evolution of Kira
Noah Waisberg and Dr. Alexander Hudek first got together in January 2011, introduced by a friend-of-a-friend. At the time, Noah had recently quit his job as an M&A lawyer at Weil, Gotshal & Manges, a very large New York City firm. Alex had recently gotten a Computer Science PhD from the University of Waterloo. Alex was doing post-doctoral research at the time.
For years before leaving Weil, Noah wrestled with the inefficiencies he (and friends at other firms) struggled with. Junior corporate lawyers spent vast amounts of time doing work they hated, weren't very good at, and clients hated paying for. All at back then over $300/hour. It seemed unsustainable. And perhaps an opportunity. Noah thought, “What are things junior corporate lawyers spend a lot of time on? Can they be done better?” He played with several ideas, but they didn't seem like they would make great businesses. Then, in conversation with his wife one crisp November day, he started to think about contracts. He realized three things:
1. People spend a ton of time reviewing contracts.
2. They make lots of mistakes in this work, even when they are top graduates, from top schools, who have been through extensive training.
3. People often review contracts for the same things over and over. In M&A, it can be change of control, assignment, exclusivity, and the like. In securities, maybe it's restricted payments baskets or asset sale covenants. In real estate, it might be base and additional rent, subletting, or maintenance responsibilities. And so on.
Since people looked through contracts for the same things over and over, Noah thought it might be possible to build software to help lawyers find and extract this information. He needed a technical partner, and teamed up with Alex to solve the problem. Based on talking with Alex and other Waterloo computer science PhD grads, they thought it would take them four months to harness available machine learning and apply it to this problem. They thought it might
take them six months to raise money to pursue their idea, and decided to just plow forward; they could raise money later.
After six months, the software was not working properly it just wasn't accurate and there was little chance it would improve anytime soon. As Alex learned more, he realized the state of the art technology didn't work well on their problem. They faced scientific uncertainty. They might crack the problem in three months, but it could take up to 10 years. At that point, they certainly didn't think they could raise any money. Telling a venture capitalist that they thought they would lick the problem in a decade didn't seem like it would make a very compelling pitch, especially when the end product would make lawyers faster at their work.
They Just Kept Building
By 2013, two-and-a-half years later, the software was finally accurate. Early customers found they could do contract review in 20% to 90% less time, with the same, or greater, accuracy.
Sales were sloooooow; few people were paying to use the software. Two-and-ahalf years of operations, a hard technical problem solved, but little revenue to show for it, selling to lawyers (who were reputed to be anti-tech and antiefficiency) seemed like a hard VC pitch. So they stayed focused on improving the product and getting people to pay to use it. By 2014, there was more interest in the software, and Alex built a crude version of a long-desired feature that allowed users themselves to teach the software to find new concepts. Now, a person could teach the system without feeling the need for a technical expert at their side. This was huge. Clients could highlight and tag provisions in a document, press a button, and it would learn what to look for. This, plus a market that was getting more and more focused on efficient legal work, ignited the sales of Kira. The company grew from 4 to 8 people in 2014, up to some 35 in 2016, as the customer base also grew. In summer 2018, bootstrapped Kira Systems reached 100 team members and took its first outside funding. As we write this Introduction in summer 2020, there are 240 Kirans.
A healthy majority of the world's biggest and best law firms subscribe to Kira’s AI contract analysis software, including 19 of the top 25 M&A firms, 7 of the “Vault 10” most prestigious US law firms, 11 of the UK's top 12 firms by revenue, 5 of Canada's “Seven Sisters,” and leading firms in countries including Brazil, Denmark, Germany, India, Norway, and Portugal. It's not just giant firms
using Kira. Law firms ranging from solos and smalls to several of the top few firms in places like Missouri or Tennessee subscribe, too. So do most Big Four firms, sometimes for their lawyers, but also for thousands of accountants or consultants to use. Plus, a growing number of corporates, which sometimes use the software to help in-house lawyers, but they often deploy it to help them understand what their contracts say to help with business problems or to augment contract management systems.
Why Are Noah and Alex Worth Reading on the Use of AI in the Legal Industry?
Why are we well qualified to be a guide through this industry? In some ways, we're not. We run a legal AI software company and so may be biased. On the plus side, we have been working on legal AI for almost a decade, meaning we're among the longest-active people in the industry. We have built among the most successful businesses in legal AI. And we bring individual advantages to the table, too. Noah has practiced law, giving him empathy for what it's like to be an attorney. Alex has deep technical knowledge. He began programming computers at age 8, and since has worked on the human genome project, gotten his PhD in computer science, and worked heavily with machine learning on text, as well as formal logics.
In the Pages Ahead
We hope you will come away from this book with two learnings:
1. AI is here in law practice, like it or not. It is already in heavy use in parts of the legal industry, and this will only grow. In time, its use will be ubiquitous.
2. AI can be great for lawyers, if they let it. It can help them do more, better work, generating happier clients; give them more interesting and fulfilling careers; and help them make more money.
This book is not intended to be an exhaustive review of everything happening in legal AI. We are not going to tell you about all areas where AI is being used in law, or which vendors are best. Honestly, it's changing quickly, and we hope this book will be helpful for years into the future. But there's a deeper reason we wrote this book. We believe that if you come away believing that AI can help
your legal career, you'll be able to take the next steps to figure out how. Think of it as more like A Year in Provence or Paris to the Moon than the Michelin Guide. More The Old Patagonia Express or In Patagonia than the Footprint South America Handbook. We aren't going to tell you where to get the best socca in Nice, or where to stay in Ushuaia. But, hopefully, we will inspire you to go. Of course, this book is about legal AI, not France, and we're no Paul Theroux or Bruce Chatwin when it comes to writing. Nevertheless, we are optimistic you will find this book worth spending your valuable time with.
Among the many specific points addressed, AI for Lawyers will focus on:
Why AI is now so vital in the legal workspace and how you can expand your opportunities through AI and technology.
How to amplify legal knowledge through the use of AI.
The various types of AI tools available including eDiscovery, legal research, contract analysis software, expert systems, and litigation analytics.
How to incorporate AI into large, mid-sized, or small practices.
While Noah and Alex are among the most knowledgeable people in the world on contract analysis software and why lawyers should embrace AI, others know more than they do about some areas under the legal AI umbrella. So, along with the expertise of the authors, you will also find significant contributions by leading industry experts on some topics. This includes Carolyn Elefant on AI for solo and small-firm lawyers; Mary O'Carroll, Jason Barnwell, and Corinne Geller on modern legal jobs; Dera Nevin on AI in eDiscovery; Jake Heller, Laura Safdie, and Pablo Arredondo on AI in legal research; Joshua Walker and Anthony Niblett on litigation analytics; Amy Monaghan and Alicia Ryan supplementing Alex and Noah on contract analysis; and the magisterial Michael Mills on expert systems. Their background, experience, and insights add to the book's depth.
You needn't read this book chapter by chapter. Some chapters may be relevant for you in your practice, others not. Chapters 1, 2, and 5 are more general interest, primarily focused on objections to and opportunities from adopting AI. Chapter 4 focuses on how AI is creating new types of legal jobs. Chapter 6 discusses ethical issues around legal AI. Chapter 3 should be interesting for solo and small-firm lawyers, but not as useful for Biglaw or in-house readers. Part II (Chapters 7–11) focus on specific areas where AI has caught on in law practice. If you're a corporate or tax lawyer, Chapter 10 (contract analysis software) and Chapter 11 (expert systems) should be most relevant for you. If you're a litigator,
Chapter 7 (eDiscovery), Chapter 8 (legal research), and Chapter 9 (litigation analytics) will be more interesting. Part III (Chapter 12) focuses on adopting AI into practice. The Conclusion is more general audience.
This book includes many quotes from people we think have something to add. Unless the source is attributed in an endnote, these quotes come from correspondence with the authors.
AI is here to stay and is changing how lawyers work. It can significantly benefit your career. If you're not already onboard, the time is now. AI for Lawyers can position you to get front and center in this new era of law practice. Let's go!
PART I
The Point: AI in law is here to stay. It's time to take advantage
CHAPTER 1
How Lawyers Learned to Stop Worrying and Love AI
Simon G. is a 46-year-old corporate partner in a major New York–based law firm. He had been a partner for nearly 10 years when he took over as the relationship lead with one of the firm's top clients, a prominent Fortune 500 corporation.
This client was a major source of revenue for Simon's firm and several others. For many years, the firm was on the client's “panel” of legal service providers. To do any legal work for this company, you had to be on its panel. Each firm on the panel was designated for specific types of engagements and projects, and each would form its own deals with the client.
Everyone at the firm who worked on this client's “team” knew in-house lawyers and executives there very well. They had longstanding bonds formed over weeks-upon-weeks cooped up in conference rooms working on deals, as well as dinners, drinks, Yankee games, theater nights, parties, and more. The families of the partners and those of the corporate executives also got to know each other and would be invited to weddings and other family events. One senior partner at the firm even bought a summer house to be near a bunch of executives from this client.
Every three years, the client would go through the process of reselecting its panel of law firms to represent the firm. During each selection process over the decade in which Simon had been a corporate partner, the process had proceeded seamlessly, without even a hiccup.
Now, several of the firm's senior partners were beginning to transition into retirement. Simon was in a position to take on the leadership role of this major client relationship. This was everything he had worked toward. But, as he prepared to take over the leadership role, he quickly found himself in a major predicament.
This time, something was very different in the panel selection process. Instead of Simon's firm and other top-tier firms offering their typical 10–20% discounts, several top-notch firms, including a few that had never served on the panel before, were offering crazy discounts, some as much as 50% below their normal
rates. Simon knew that these were excellent firms; he couldn't knock their quality, and he couldn't understand how they could afford to offer such low rates. Worse, he knew his firm could not afford to compete against these offers. Simon's heart sank. He realized that despite decades of great work and strong relationship development by Simon and his mentors, it was painfully clear that the firm was going to be priced out of working with this important client.
Shocked by how the panel selection was going, Simon immediately got on his computer and started doing what he should have done years prior to the panel review discovering how law practice was changing, rather than assuming the longstanding relationship with this client would simply continue uninterrupted.
Simon spent hours over the next several days studying the competitive landscape, learning about what he and the retiring senior partners had missed. They had overlooked a very important aspect of today's legal industry: the greater drive for efficient work. Now Simon would have to figure out how to make up for falling so far behind his competitors. What he learned was that his competitors, thanks to innovations like AI, were able to do better work in less time. Through tracking and analyzing the time spent to do tasks as well as realization rates, Simon's competitors could figure out how to offer lower unit prices and still make money. Simon's firm was plenty sophisticated when it came to their legal skills, but, Simon was coming to realize, they were seriously outgunned when it came to the modern practice of law. To remain competitive, Simon and his firm would have to embrace technology in a big way to win over major clients and potentially impress their (now former) biggest client in three years at the next panel review.
Simon's problem was not uncommon, and not unique to Biglaw.
If you're a solo estate planning lawyer, how do you compete with online legal solutions like LegalZoom, who offer a will for $179?
If you're a small firm litigator, how do you compete with a bigger firm that has access to case data that's not as easy for you to obtain?
If you have a high-volume practice, how do you compete with firms that spend less time on customer intake because they use software that shortens the intake process and provides clients with self-help?
Now the question for Simon and his law firm was, could they do it? Could they get back in good favor with their most prestigious client?
AI has been a godsend for countless young law firm associates who once toiled
late into the night to gather and review data, but has it played a more significant role across law practice? Let's find out. Before launching into the pros and cons of AI and the resistance and opportunities we have encountered, let's explain our definition of AI.
What Is AI?
For the purposes of this book, we consider AI to be any task a computer does that shows “human-like” intelligence or better. The precise edges of this definition are less important to us than the overall impact that AI and similar technologies have on society and the practice of law. To illustrate, let's talk about a few prominent types of AI tasks and techniques.
The field of AI encompasses many subdisciplines, including machine learning, expert systems, and other reasoning technology. At different points in history, a particular technique might be the face of AI. Although expert systems were once all the rage, today deep learning (a type of machine learning) is extremely popular.
In fact, not too long ago, arithmetic was considered an intelligent activity that only humans could perform. The term computer originally referred to people who did arithmetic and other math, not a machine that runs software (see Figure 1.1).
We wouldn't consider arithmetic to be artificial intelligence today, but 70 years ago, seeing a machine do this was magic. This shows how the definition of AI has a tendency to change over time. As tasks that we once considered untouchable by computers become routine, our definition of “human-like” intelligence becomes narrower. It's no longer news that computers can dominate at games of chess, and many people today take it for granted that they can speak to their phones. Self-driving cars exist and might become equally ordinary in the years to come.
FIGURE 1.1 Early “computers” at work: Dryden Flight Research Center Facilities.
Source: From the Dryden Flight Research Center Photo Collection
AI can replicate certain aspects of human intelligence, such as pattern matching or categorization, and can often do such tasks much faster and more accurately than humans. However, AI doesn't have motivation and emotion like a human, and is generally not able to do things it wasn't designed to. The notion of a rogue AI is pervasive in popular culture and movies, but the reality is much less frightening. The AI that can learn languages is different from the AI that can hit a tennis ball, and there is no general connection between abilities. You can't assume that just because AI can win at Jeopardy, it will, therefore, make an amazing courtroom advocate. Those are different things. Doing one thing well doesn't mean it can do the other. Although we tend to promote the idea of AI having human intelligence by giving it human names such as Siri, Alexa, or Hal, it's still unable to emulate most of the human thought process, for better and for
worse.
All that said, AI is able to do many remarkable things, such as understanding human speech, articulating responses, even writing passable text! How does it do this? It uses expert systems, machine learning, and constantly emerging innovation.
First let's talk about expert systems. These are computer systems that emulate the decision-making process of a human expert by asking a cascading series of questions. For example, an expert system might mimic what your doctor would do when they're making a diagnosis. It may ask: Do you have a fever? Do you have headaches? Do you feel dizziness? And so forth, then propose a diagnosis based on the answers you provided. The questions and decision trees in these systems must be handcrafted by human experts, generally falling into the “rule based” or “reasoning” subfield of AI. Expert systems are a good tool for a variety of tasks, but in many areas they are being replaced by machine learning.
Most of the AI you see in the news today is based on machine learning, including all the various deep-learning advances. Machine learning techniques allow computers to learn to perform tasks simply by observing data provided to them. It doesn't need experts to manually write complex rules, though it still does need to observe people to learn from them. Although the origins of machine learning are as old as those of expert systems, machine learning techniques didn't become widely effective until computers became more powerful. These systems excel at modeling unpredictable and complex tasks and can learn at a rate and scale far beyond what humans manually encoding knowledge in rules could achieve.
From driving a car, to serving as personal assistants, to face recognition, to web translation, to recommending a comedy you might like on Netflix, various types of AI are part of our world in big and small ways. In this book, the technology we discuss falls under our definition of AI. Others may have slightly different definitions of what “AI” is, but we would rather talk about its impact in law practice than debate the exact boundaries of the terms.
In the legal world, AI is being used for contract drafting, negotiation, and review; litigation document review and analysis; predicting case outcomes; suggesting courses of action; organizing legal research; time keeping; and lots more. It is opening up possibilities never before imagined and allowing lawyers to spend more time on law and less time on repetitive activities. AI is partnering with lawyers, rather than replacing them.
